MALICIOUS
164
Risk Score
Malware Insights
MITRE ATT&CK
T1566.001 Spearphishing Attachment
The PDF contains a link farm pointing to multiple compromised WordPress sites, likely intended to host malicious payloads. The heuristic 'SE_INVOICE_LURE' suggests the document's content is designed to trick the user into downloading a file. While no scripts were directly extracted, the nature of the link farm and the ML classifier's high confidence indicate a malicious intent to deliver a secondary payload.
Machine Learning
- Nyx PDF Classifier malicious score 0.9947
Heuristics 7
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ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTIONClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
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PDF link farm points to compromised-WordPress upload storage medium PDF_COMPROMISED_CMS_UPLOAD_LINK_FARMPDF contains multiple clickable links, across many distinct hosts, whose targets are random-slug files parked in the upload directories of vulnerable WordPress form plugins (FormCraft, Super Forms). This is the hallmark of the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains hosted on compromised sites. The PDF itself carries no exploit — the risk is the linked destinations.
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Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARMSmall PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
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Fake invoice / payment lure low SE_INVOICE_LUREDocument contains invoice or payment language paired with an action verb — useful context when combined with link, macro, or attachment indicators
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External URI info PDF_URIPDF contains an external URL action
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Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTALThe same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
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Embedded URL info EMBEDDED_URLOne or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.URL http://www.olympussverige.se/wp-content/plugins/super-forms/uploads/php/files/i3m509j0063rqlrpfa3aqofpim/joduforunanakiburobepegup.pdf
- http://www.myhhsi.com/wp-content/plugins/super-forms/uploads/php/files/3d0554340bbc066b2a092e05eb437b10/kukudijerumomojikokovi.pdf
- https://hssipm.com/wp-content/plugins/super-forms/uploads/php/files/d2775bae1d5a300a26c6f8bef3b01b8b/3647795961.pdf
- https://inclinedigital.com/wp-content/plugins/formcraft/file-upload/server/content/files/1607812a5d1b9f---fuwefupu.pdf
- https://www.criteriainvest.com.br/wp-content/plugins/super-forms/uploads/php/files/605u34gt88cqkpql3vfm853kj0/jamumemufejupupiwaju.pdf
- http://frederickfollows.co.uk/wp-content/plugins/formcraft/file-upload/server/content/files/160706b28480fa---rixufi.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/qkdr3ll2flm5nd527ofm4ujgm4/jujisa.pdf
- https://gaziemirkentkonseyi.com/upload/files/virixoxugowodeg.pdf
- http://dodici12.ru/wp-content/plugins/super-forms/uploads/php/files/3qoben8emilapiv3up1t51aca4/nokolokugepulubuzabuburox.pdf
- http://www.maoles.com/wp-content/plugins/formcraft/file-upload/server/content/files/1606cbce7ce0b7---61131572397.pdf
- http://nuyewrecruitment.com/wp-content/plugins/super-forms/uploads/php/files/f4927d63834cb1f9950ad53366d123bb/xawimumivazezerej.pdf
- http://www.investing-in-women.com/wp-content/plugins/formcraft/file-upload/server/content/files/160817991251ea---totivokojavex.pdf
- http://perfectthesale.com/wp-content/plugins/formcraft/file-upload/server/content/files/16075f9d1ec53c---norufudewol.pdf
- https://www.rockandroll.blog.br/wp-content/plugins/super-forms/uploads/php/files/1t19k579mdbm1ecpqru9o38pu4/52712577066.pdf
- https://event-connections.net/wp-content/plugins/formcraft/file-upload/server/content/files/160816200782b1---54933030786.pdf
- http://staging.impactredevelopment.com/wp-content/plugins/formcraft/file-upload/server/content/files/160ac4d15d9348---65535797680.pdf
- http://hokeypokeychallenge.com/clients/7/77/77ac66e313b6cb4bf602f1678accca72/File/xiletosulukujapatebamegus.pdf
- https://cbolean.com/wp-content/plugins/super-forms/uploads/php/files/h94utttfq2mik9baq6qgof0ce4/6296887103.pdf
- http://www.liveartsaskatchewan.com/wp-content/plugins/formcraft/file-upload/server/content/files/160acdbc405ca0---rolojifaveti.pdf
- http://hzbmsj.net/images/upload/File/dolajex.pdf
- https://beachesbrewing.com/wp-content/plugins/super-forms/uploads/php/files/bf0585ec621cffcd13ef78b79b1f8b16/1497012825.pdf
- https://www.charityweiss.de/wp-content/plugins/formcraft/file-upload/server/content/files/160b29cdb8645b---43160320013.pdf
- http://juniorsmagazine.com/wp-content/plugins/formcraft/file-upload/server/content/files/1608cb26bae934---dagefalexedijoz.pdf
- https://www.infrascale.com/wp-content/plugins/super-forms/uploads/php/files/7b63f44adb899f9ce345e177d670a172/83053341394.pdf
- https://feedproxy.google.com/~r/1eyvgo/aqOO/~3/cv9VXjIrmdE/uplcv?utm_term=pdfchm+net+account
- http://www.w3.org/1999/02/22-rdf-syntax-ns#
- http://purl.org/dc/elements/1.1/
- http://ns.adobe.com/pdf/1.3/
- http://ns.adobe.com/xap/1.0/
- http://ns.adobe.com/xap/1.0/mm/
- http://ns.adobe.com/xap/1.0/rights/
- http://dejavu.sourceforge.net
- http://dejavu.sourceforge.net/wiki/index.php/License
Extracted artifacts 3
Files carved from inside the sample during analysis.
| Filename | Kind | Source | Size |
|---|---|---|---|
font_00_sfnt_off0000f66e.bin8c1ca263e0543d1970efa8883f2f47d59503c43b9a5c31736c79d05109fce2f6 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0xF66E | 17940 bytes |
font_01_sfnt_off0001256c.bin07573c8d4b552727306ff0d2ee0bb03cb9a9b7e28854f4042544444b2d3706dd |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x1256C | 10436 bytes |
font_02_sfnt_off00013cf2.bin9d2294e344127da9ddc2b77d68b1576b6b78373885bc9da2859f180a98f2c1e1 |
pdf-font-stream | PDF embedded font (sfnt) at offset 0x13CF2 | 16792 bytes |
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